OTHER RESTORATIVE CHANGES.--Many of the restorative changes in the mother's body are either so intricate or so devoid of practical significance that we may pass them by; though all of them have great interest for the specialist, and some have occasioned bitter controversy. The alterations in the heart, for instance, have been the subject of a prolonged dispute between French and German scientists. The former still assert that this organ regularly enlarges during pregnancy and subsequently returns to its normal size. The Germans deny both these contentions. Certainly the alterations are insignificant from a practical standpoint; otherwise competent observers would not disagree. The really important changes in the body, other than those pertaining to the uterus, are familiar to women who have passed through pregnancy; but other prospective mothers may not understand that they will regain the bodily condition which existed before conception. _Loss in Weight_.--While the weight lost during the lying-in period is not so vital as some other alterations, many have a keen interest in it. In addition to the loss of ten to fifteen pounds at the time of birth, a further loss occurs in the course of a few weeks. Diminution in the size of the uterus is responsible for the loss of nearly two pounds, and the lochial discharge for at least another; but the chief factor concerned is the removal of water from the tissues, many of which have become dropsical toward the end of pregnancy. Altogether patients do not lose less than ten pounds during the lying-in period, and often lose a great deal more. The average loss for the first week alone is said to equal one-twelfth of the patient's weight at the conclusion of labor; the total loss for the whole of the puerperium corresponds to one-tenth of her weight at the beginning of it. Variations from the rule are attributed to individual peculiarities of nutrition. In general, stout women lose more than slender ones, but with all types the loss is greater if the mother nurses her infant. On the other hand, a generous diet tends to counteract any loss in weight whatever. _The Abdominal Wall_.--Much more important than the question of weight is the recovery of the abdominal wall from the strain imposed by the enlargement of the womb. In normal cases, to be sure, there is very slight disproportion between the size of the pregnant uterus at term and the capacity of the abdomen, yet the abdominal wall invariably suffers a little stretching and unless it retains its elasticity, the viscera are deprived of essential support, and cause more or less discomfort.